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Carbon and its Compounds Science - Carbon and its Compounds

UP Board (UPMSP) - STD 10 - Science (UPMSP - English Medium). 471 questions in this chapter.

Question types

Carbon and its Compounds question types

471 questions across 6 question groups — pick any mix to generate a Science paper with step-by-step answer keys.

471
Questions
6
Question groups
5
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Sample Questions

Carbon and its Compounds questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q1 Mark
Vinegar is a solution of about:
  • A
    5 to 8 per cent ethanoic acid in alcohol.
  • ✓
    5 to 8 per cent ethanoic acid in water.
  • C
    50 to 80 per cent ethanoic acid in water.
  • D
    50 to 80 per cent ethanoic acid in alcohol.

Answer: B.

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Q 2M.C.Q1 Mark
When ethanol reacts with sodium metal, it forms two products. These products are:
  • A
    Sodium ethanaoate and oxygen.
  • B
    Sodium ethanaoate and hydrogen.
  • C
    Sodium ethoxide and oxygen.
  • ✓
    Sodium ethoxide and hydrogen.

Answer: D.

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Q 3M.C.Q1 Mark
In a soap micelle, the soap molecules are arranged radially with:
  • A
    Ionic ends directed towards the centre and hydrocarbon ends directed outwards.
  • ✓
    Hydrocarbon ends directed towards the centre and ionic ends directed outwards.
  • C
    Both ionic ends and hydrocarbon ends directed toward the centre.
  • D
    Both hydrocarbon ends and ionic ends directed outwards

Answer: B.

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Q 4M.C.Q1 Mark
The hydrocarbon which has alternate single and double bonds arranged in the form of a ring is:
  • A
    Cyclobutane.
  • ✓
    Benzene.
  • C
    Butene.
  • D
    Hexene.

Answer: B.

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Q 5M.C.Q1 Mark
The molecular formula of an organic compound is $\ce{C_{48}H_{94}}$ This compound belongs to the homologous series of:
  • ✓
    Alkenes.
  • B
    Aldehydes.
  • C
    Alkynes.
  • D
    Alkanes.

Answer: A.

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Q 23[3 Mark Questions]3 Marks
Name the functional group of organic compounds that can be hydrogenated. With the help of a suitable example, explain the process of hydrogenation, mentioning the conditions of the reaction and any one change in physical property with the formation of the product. Name any one natural source of organic compounds that are hydrogenated.
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Q 24[3 Mark Questions]3 Marks
A hard material X which is mined from the earth is used as a house hold fuel and also for the generation of electricity at Thermal Power Stations. A soft material Y is also used us a fuel in the form of candles. A gaseous material Z which occurs along with petroleum is increasingly being used as a fuel in running vehicles in its compressed form.
  1. What are materials, X, Y and Z?
  2. When materials X, Y and Z are burned separately:
  1. When material burns by producing a yellow, luminous flame?
  2. Which material ultimately burns without producing a flame?
  3. Which material can burn in a gas stove by producing a blue flame?
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Q 25[3 Mark Questions]3 Marks
A solid element X has four electrons in the outermost shell of its atom. An allotrope Y of this element is used as a dry lubricant in machinery and also in making pencil leads.
  1. What is element X?
  2. Name the allotrope Y.
  3. State whether allotrope Y is a good conductor or non-conductor of electricity.
  4. Name one use of allotrope Y (other than lubrication and pencil leads)
  5. Name two other allotropes of element X.
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Q 26[5 marks Questions]5 Marks
An organic compound $A$ having the molecular formula $C _3 H _8 O$ is a liquid at room temperature. The organic liquid $A$ reacts with sodium metal to evolve a gas which burns causing a little explosion. When the organic liquid A heated with concentrated sulphuric acid at $170^{\circ} C$, it forms a compound B which decolourizes bromine water. The compound B adds on one molecule of hydrogen in the presence of Ni as catalyst to forms compound C which gives substitution reactions with chlorine.
a. What is compound A ?
b. What is compound B ?
c. What type of reaction occurs when A is converted into B ?
d. What is compound C?
e. What type of reaction takes place when $B$ is converted into $C$ ?
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Q 28[5 marks Questions]5 Marks
You are given the following molecular formulae of some hydrocarbons:
$C _5 H _8 ; C _7 H _{14} ; C _6 H _6 ; C _5 H _{10} ; C _7 H _{12} ; C _6 H _{12}$
a. Which formula represent cyclohexane as well as hexene?
b. Which formula represents benzene?
c. Which three formulae represent open chain unsaturated hydrocarbons having double bonds?
d. Which two formulae represent unsaturated hydrocarbons having triple bonds?
e. Which three formulae can represent cyclic hydrocarbons?
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Q 29[5 marks Questions]5 Marks
Two organic compounds A and B have the same molecular formula $C_6H_{12}$. Write the names and structural formulae:
  1. If A is a cyclic compound.
  2. If B is an open chain compound.
  3. Which compound contains single bonds as well as a double bond?
  4. Which compound contains only single bonds?
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